@lisman1408 I am sorry you are experiencing cognitive issues. How terribly upsetting and frightening.

If possible, could you take your husband to a doctor appointment where HE could be counseled about the side effects of estrogen blocking medication, since you said he is not very sympathetic? Maybe to save the cost of an appt. your oncologist could just have a 5-10 minute conversation with him on the the phone, explaining what you are going through and how these powerful drugs we take to help stay alive can wreak havoc on our systems. Along with the drug side effects, stress and worry may also be impacting your cognition. A supportive partner can help reduce those anxieties instead of elevate them.

Maybe try some of the cognitive supplements, again best to ask your doctor about which. Even well timed caffeine ingestion can boost cognition.

Perhaps some mind settling strategies like meditation could help too. Not suggesting you can meditate your SEs away, but it could help a bit with focus, anxiety, etc. I don't think it could hurt.

Also new research that just came out at the start of 2019 that showed 5 mg/day of Tamoxifen to be as effective or nearly as effective as the higher standard 20 mg/day dose with fewer side effects. If your doc approves, maybe a lower dose could help you.

I recall some research I did where a study showed Letrozole had the least cognitive issues and in limited instances boosted some one aspect of cognition. I don't think this has been widely replicated, but I found it interesting.

One thing I have learned from my own experience with these drugs and from reading about others' experiences is that the side effects can be unique to individuals, very unpredictable, and they can differ greatly amongst the various drugs.

Good luck to you.